Thanks for that, I actually understand why now haha.. So would I be able to attach a 12v whale pump which operates 0.6bar of pressure which is 0.06mpa..
If not could you find me a 12v 1/2" solenoid valve with no limits.. I can't find one and it can't come from china as this is a college project that needs to be done by next Wednesday?
Thanks for your help..